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Shell Programming and Scripting
printf command
Post 25919 by FIRE on Wednesday 7th of August 2002 02:18:17 PM
08-07-2002
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1. Shell Programming and Scripting
Hi
How could I use the command printf to display a big file.
So ex. I've a script with some variables like:
V1=358504 V2=FD0147 V3=dev5 V4=94577 V5=0 V6=UNIX V7=Policy V8=server V9=04/15/05 V10=19:18:41 V11=2341321467
while read V1 V2 V3 V4 V5 V6 V7 V8 V9 V10 V11
do
printf "\n%s %s %s... (1 Reply)
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Hi,
I am very confused with my printf command.
Somehow one variable can't line up with others...
newstart2 ="Mon Nov 11 01 00:00:00 2002"
printf "%-20s" $newstart2
Here is the output:
Mon Nov 11
01 00:00:00 2002
It spread out to two lines..
Why? (1 Reply)
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hello, Im at another part of the program i am writing. Where i think i'm going to need to use the printf command.
If anyone can help me figure out the printf layout i would greatly appreicate it.
thanks (4 Replies)
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Where would I get a good explanation for all the possibities when using the "printf" unix commmand. (14 Replies)
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Hi,
I a sequance number from 1-999 and i want asing the value like 001,002..999
Exp:
file_001
file_002
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file_999
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Hi,
I am using below awk code to convert a csv file data into fixed file format.
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Data in mydata.csv
================... (1 Reply)
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Hi,
I am using below awk code to convert a csv file data into fixed file format.
awk 'BEGIN { FS = ","
fmt = "%10s%010d%10s%d%1d\n" }
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Data in mydata.csv
================... (2 Replies)
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For example, in this command:
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hello,
I'm trying to display Unix variable using printf command.
Code:
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printf( "%s\n%s\n",$0,"dsd"); #this one works
printf( "%s\n%s\n",$0,$HOME); #this does not work
} else {
print $0;
}
}' param1_1.txt
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LEARN ABOUT LINUX
shutdown
shutdown(8) System Manager's Manual shutdown(8) NAME
shutdown - bring the system down SYNOPSIS
shutdown [OPTION]... TIME [MESSAGE] DESCRIPTION
shutdown arranges for the system to be brought down in a safe way. All logged-in users are notified that the system is going down and, within the last five minutes of TIME, new logins are prevented. TIME may have different formats, the most common is simply the word 'now' which will bring the system down immediately. Other valid for- mats are +m, where m is the number of minutes to wait until shutting down and hh:mm which specifies the time on the 24hr clock. Once TIME has elapsed, shutdown sends a request to the init(8) daemon to bring the system down into the appropriate runlevel. This is performed by emitting the runlevel(7) event, which includes the new runlevel in the RUNLEVEL environment variable as well as the previous runlevel (obtained from the environment or from /var/run/utmp) in the PREVLEVEL variable. An additional INIT_HALT variable may be set, this will contain the value HALT when bringing the system down for halt and POWEROFF when bringing the system down for power off. OPTIONS
-r Requests that the system be rebooted after it has been brought down. -h Requests that the system be either halted or powered off after it has been brought down, with the choice as to which left up to the system. -H Requests that the system be halted after it has been brought down. -P Requests that the system be powered off after it has been brought down. -c Cancels a running shutdown. TIME is not specified with this option, the first argument is MESSAGE. -k Only send out the warning messages and disable logins, do not actually bring the system down. ENVIRONMENT
RUNLEVEL shutdown will read the current runlevel from this environment variable if set in preference to reading from /var/run/utmp FILES
/var/run/utmp Where the current runlevel will be read from; this file will also be updated with the new runlevel. /var/log/wtmp A new runlevel record will be appended to this file for the new runlevel. NOTES
The Upstart init(8) daemon does not keep track of runlevels itself, instead they are implemented entirely by its userspace tools. See runlevel(7) for more details. AUTHOR
Written by Scott James Remnant <scott@netsplit.com> REPORTING BUGS
Report bugs at <https://launchpad.net/upstart/+bugs> COPYRIGHT
Copyright (C) 2009 Canonical Ltd. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. SEE ALSO
runlevel(7) init(8) telinit(8) reboot(8) Upstart 2009-07-09 shutdown(8)